What is the Modified Duodenal Switch or SADI-S?

Over the last few years, the modified duodenal switch, single anastomosis duodenal switch or SADI-S a less invasive, modified version of the duodenal switch, has become an option. The ideal patient for a single anastomosis duodenal switch has more weight to lose, particularly patients with a BMI around or over 50.

This procedure combines restriction of food consumption and malabsorption, which allows patients to maximize weight loss quickly and results in very good long-term weight loss maintenance.

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A sleeve is done first, creating restriction and hunger control. Preserving the pylorus prevents patients from getting dumping syndrome, unlike the gastric bypass.

Then the intestines are re-routed. In the modified duodenal switch, instead of using two connections as in the gastric bypass or the traditional duodenal switch, a single connection is made in a loop configuration. By having one connection instead of two, the surgery is performed more quickly and with less risk of leak.

In the end, the amount of calories the patient’s body absorbs is reduced by limiting the amount of time and length of bowel the food is exposed to.

This is the weight loss operation that can give you the most weight loss, usually 85-90% of your excess weight, and has the lowest chance of weight regain.

Why choose the Modified Duodenal Switch?

  • Greatest weight loss potential of all bariatric procedures

  • Approximately 85-90% of excess weight loss

  • Minimal risk of dumping syndrome

  • Improvement/resolution in all major co-morbidities (back pain, sleep apnea, high blood pressure, type 2 diabetes, high cholesterol).*

  • Minimal risk of ulcer disease

  • Lower risk of bowel obstruction compared to the duodenal switch

  • Lower incidence of ulcers when compared to the gastric bypass

  • Less fluctuations in blood sugar than gastric bypass

  • Similar weight loss to the classic DS, with less complications.

  • It can be used as a primary weight loss operation or as a revisional procedure due to inadequate weight loss or weight regain, after the Gastric Sleeve, Gastric Band or Gastric Bypass.

    *Individual results vary, having weight loss surgery does not guarantee that health problems will be resolved.

Disadvantages*

  • Close lifelong monitoring for protein malnutrition, anemia and osteoporosis is recommended and lifelong vitamin supplementation is necessary.

  • Less long term data than classic duodenal switch or gastric bypass as the procedure is newer.

  • 1-2% chance of re-operation due to severe vitamin deficiency, excessive weight loss, etc

    *Dr. del Pino and his team will work with you to minimize these risks through continual patient observation, and diet and exercise management.

What is the Modified Duodenal Switch Procedure or SADI-S?

Dr. Mario del Pino explains the Modified Duodenal Switch procedure for weight loss/bariatric surgery.

¿Qué es el switch duodenal modificado o SADI-S?

Dr. Mario del Pino explica el procedimiento Modified Duodenal Switch.

Patient Testimonials

  • "It has been 1 year and 7 months since I had the Duodenal Switch and I couldn’t be any happier with my results. I am down 215 lbs! I am forever grateful to Dr. del Pino, he’s the best!”

    Jacqueline Olivares

  • "I had a Gastric Bypass in December 2017 and I couldn’t be more satisfied with the results. Before the surgery I was weighing 340 lbs and on multiple medications. I lost over 100 lbs and no more symptoms or medications! I work out on a regular basis and feel much better. The surgery added years of life! I highly recommend Dr. Del Pino along with his support staff."

    Gilbert Conde

  • “There is no better time to take back control of your health and body than right now. Weight loss will help eliminate so many health issues since so many diseases are influenced by excessive weight. The sooner that you start, the sooner you will be on your way to a healthier "you". I personally want to encourage you. I have lost 260 pounds. I have regained my health and self-esteem.”

    Mark Free

  • I had a Gastric Bypass on May 2021. 300 lbs on left and 150 lbs on the right. I was diabetic and had Severe Obstructed Sleep Apnea. Off all medications! I'm feeling very energetic and full of life. Feel like I can accomplish anything that life brings me. Thank you Dr. Del Pino. God Bless you always.

    Ruben Nordhausen

  • “Having surgery 2 years ago was the best decision of my life. He did his part and I have done my part and have lost 190 lbs with no regain. Have not had any problems. Dr. Del Pino was very honest and explained procedure thoroughly and eased all my fears. His staff was so amazing and helpful. He is very caring and compassionate in helping those who suffer obesity. Love this doctor, he’s the best Thank You Dr. Del Pino for helping me get my life back. “

    Mary Elizabeth

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